Indy games markets have been flooded with human slop since long before AI was a thing, the marketing playbook hasn't changed at all, if you just fire games into the void you never had a shot.
People have been making games in a weekend using asset packs/store resources and engines for a while now. Indie gaming speed ran a lot of the marketing bullshit that every kind of app is suffering through now, and there's already a pipeline in place that works pretty well: itch.io demo -> vlogging/streaming/discord -> steam demo -> early access -> streamer promotion.